hey guys i have been away for a long time opening my new business and working on my corvette. but i finaly got around to designing a box that would allow 2 12w7'* in a ported box as well as wll the stuff needed to make it work....3 jl amps lol are not small . ne way the problem is when i just had the front amp hooked up there was no noise at all n sounded great. but when i added the other two sub amps now i have this noise coming out the mids and high speakers. it is not alt as it dont change with engine rpm. i not had enough time to debug it but i did get another battery and relay to separate the car from the system but it is still there. i just wondered if anyone else has ran into this with the bonn and found the issue as the stereo'* in these has been a pain from the begining lol.

Can be a bitch. Alternator noise is the worse to cancel if thats it. Poor grounds are often a cause to. Two leading places tare the grounding box in the engine compartment and the ground lug to body pan under the back seat. Do you have a separate battery for your system? Capacitors?

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leather covers ect be done today then we taking it to world of wheels for our display this weekend

it is not alternator noise. as it is constent and dont change pitch with engine rpm. yeah i have a stinger dual battery silonoide (sp?) so car battery and stereo battery is separate. i have a mtx grounding lug with 0 gauge wire grounding the stereo. i thought i had noise issues handled til i got the subs working :(

It seems to me one member had a problem with his compass unit and fixed it by covering the bottom with adhesive backed foil. Sounds like you have the obvious covered. Have a friend who had a background noise at high "custom shows" volume that turned out to nothing more than the twin high power amps were just to close to the subs.

BOX FINISHED

BEAUTY AND BEAST AT WORLD OF WHEELS